package cn.lut.crowd.service.impl;

import cn.lut.crowd.entity.po.MemberPO;
import cn.lut.crowd.entity.po.MemberPOExample;
import cn.lut.crowd.mapper.MemberPOMapper;
import cn.lut.crowd.service.api.MemberService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

/**
 * @user:dell
 * @date:2021年01月07 17:09
 */
// 在类上使用@Transactional(readOnly = true)针对查询操作设置事务属性
@Transactional(readOnly = true)
@Service
public class MemberServiceImpl implements MemberService {
    @Autowired
    private MemberPOMapper memberPOMapper;

    @Override
    public MemberPO getMemberPOByLoginAcct(String loginacct) {
//        1.创建example对象
        MemberPOExample memberPOExample=new MemberPOExample();
//        2.创建Criteria对象
        MemberPOExample.Criteria criteria = memberPOExample.createCriteria();
//        3.封装查询条件
        criteria.andLoginacctEqualTo(loginacct);
//        4.执行查询
        List<MemberPO> list = memberPOMapper.selectByExample(memberPOExample);
//        5.获取结果
        if(list==null||list.size()==0){
            return null;
        }
        return  list.get(0);
    }
    @Transactional(propagation = Propagation.REQUIRES_NEW,rollbackFor = Exception.class,readOnly = false)
    @Override
    public void saveMember(MemberPO memberPO) {
        memberPOMapper.insertSelective(memberPO);
    }
}
